LFC will break after power cycling the screen or waking the screen from sleep.So LFC is Low Frame Compensation... It is a solution for freesync monitors ( gsync compatible monitors) to get smooth experience when the Frames drops below the refresh rate range of the monitor. it is implemented in the driver.
The LG 27GL850 has range of 48Hz-144Hz
A practical example like the videos i provided: https://drive.google.com/file/d/14TlVhy ... sp=sharing
another video this time showing tearing https://drive.google.com/file/d/15CoMyz ... sp=sharing
When LFC is working correctly:
- 40FPS will make the screen refresh at 80Hz: smooth and No tearing
50Fps will make the screen refresh at 100Hz: smooth and No tearing
70Fps is already smooth so LFC will disable and the screen will refresh at 70Hz: smooth and No tearing
- 40FPS will make the screen refresh all over the place like in my video : Not smooth and visible tearing
50Fps will make the screen refresh at 50Hz: smoothish and No tearing
70Fps will refresh at 70Hz: smooth and No tearing
The only way to solve this is to reboot OR to change the refresh rate of the screen from 144 to 120 and then back 144...
the LFC will be broken again as soon the monitor will power cycle or go to sleep.
I saw a lot of forums with this problem and thats a freesync + nvidia issue... not specific to my monitor but specific to gsync compatible monitors in general. I confirmed with several users on discord.
https://www.reddit.com/r/ultrawidemaste ... nc_issues/
https://www.nvidia.com/en-us/geforc...- ... rced-to-r/
it doesnt have a lto of coverage because the Gsync will be working but not as intended with the LFC...
when LFC breaks , stutter and tearing will appear when out of range.
like in one of the threads, i created a BAT file that cyclce the refresh rate from 144 to 120 and back to 144 in order to reset the LFC and make it work again without rebooting the PC..
Maybe some users with 10XX can test this if they have a gsync compatible monitor...